A 7000-year record of oribatid mite communities on a maritime-Antarctic island: responses to climate change
We studied the fossil remains of the common Antarctic oribatid mites, Alaskozetes antarcticus and Halozetes belgicae, in sediment cores from two lakes in adjacent catchments on Signy Island, South Orkney Islands, maritime Antarctic. The aim was to examine the response of these species to 7000 yr of...
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Institute of Arctic and Alpine Research
2005
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ftnerc:oai:nora.nerc.ac.uk:1808 2023-05-15T13:09:54+02:00 A 7000-year record of oribatid mite communities on a maritime-Antarctic island: responses to climate change Hodgson, Dominic A. Convey, Peter 2005 http://nora.nerc.ac.uk/id/eprint/1808/ unknown Institute of Arctic and Alpine Research Hodgson, Dominic A. orcid:0000-0002-3841-3746 Convey, Peter orcid:0000-0001-8497-9903 . 2005 A 7000-year record of oribatid mite communities on a maritime-Antarctic island: responses to climate change. Arctic, Antarctic and Alpine Research, 37 (2). 239-245. https://doi.org/10.1657/1523-0430(2005)037[0239:AYROOM]2.0.CO;2 <https://doi.org/10.1657/1523-0430(2005)037[0239:AYROOM]2.0.CO;2> Zoology Ecology and Environment Publication - Article PeerReviewed 2005 ftnerc https://doi.org/10.1657/1523-0430(2005)037[0239:AYROOM]2.0.CO;2 2023-02-04T19:21:08Z We studied the fossil remains of the common Antarctic oribatid mites, Alaskozetes antarcticus and Halozetes belgicae, in sediment cores from two lakes in adjacent catchments on Signy Island, South Orkney Islands, maritime Antarctic. The aim was to examine the response of these species to 7000 yr of documented environmental change. Mites colonized the island shortly after the ice sheet retreated and habitats became available. A temperate period in the Holocene (c. 3800–1400 cal. yr BP) led to population expansion by factors of 7 (both species) in one catchment and 5.1 and 2.3 for both species in the other. This mid-Holocene hypsithermal is thought to have involved increases in habitat size, productivity, temperature, and moisture availability. Mite populations went into decline as conditions cooled. A period of short cold summers from c. 1400 cal. yr BP persisting to the middle of this century continued to impose restrictions on the biota. These results suggest that mite populations will respond positively to the recent rapid regional warming documented in the maritime Antarctic. However, on Signy Island this prediction is complicated by a similarly recent and rapid expansion of the populations of Antarctic fur seals (Arctocephalus gazella), which has not occurred previously since deglaciation, damaging the mites' habitats and exerting a new set of ecological constraints. Article in Journal/Newspaper Alaskozetes antarcticus Antarc* Antarctic Antarctic and Alpine Research Antarctic Fur Seals antarcticus Arctic Arctocephalus gazella Ice Sheet Signy Island South Orkney Islands Mite Natural Environment Research Council: NERC Open Research Archive Antarctic South Orkney Islands ENVELOPE(-45.500,-45.500,-60.583,-60.583) Signy Island ENVELOPE(-45.595,-45.595,-60.708,-60.708) |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Zoology Ecology and Environment |
spellingShingle |
Zoology Ecology and Environment Hodgson, Dominic A. Convey, Peter A 7000-year record of oribatid mite communities on a maritime-Antarctic island: responses to climate change |
topic_facet |
Zoology Ecology and Environment |
description |
We studied the fossil remains of the common Antarctic oribatid mites, Alaskozetes antarcticus and Halozetes belgicae, in sediment cores from two lakes in adjacent catchments on Signy Island, South Orkney Islands, maritime Antarctic. The aim was to examine the response of these species to 7000 yr of documented environmental change. Mites colonized the island shortly after the ice sheet retreated and habitats became available. A temperate period in the Holocene (c. 3800–1400 cal. yr BP) led to population expansion by factors of 7 (both species) in one catchment and 5.1 and 2.3 for both species in the other. This mid-Holocene hypsithermal is thought to have involved increases in habitat size, productivity, temperature, and moisture availability. Mite populations went into decline as conditions cooled. A period of short cold summers from c. 1400 cal. yr BP persisting to the middle of this century continued to impose restrictions on the biota. These results suggest that mite populations will respond positively to the recent rapid regional warming documented in the maritime Antarctic. However, on Signy Island this prediction is complicated by a similarly recent and rapid expansion of the populations of Antarctic fur seals (Arctocephalus gazella), which has not occurred previously since deglaciation, damaging the mites' habitats and exerting a new set of ecological constraints. |
format |
Article in Journal/Newspaper |
author |
Hodgson, Dominic A. Convey, Peter |
author_facet |
Hodgson, Dominic A. Convey, Peter |
author_sort |
Hodgson, Dominic A. |
title |
A 7000-year record of oribatid mite communities on a maritime-Antarctic island: responses to climate change |
title_short |
A 7000-year record of oribatid mite communities on a maritime-Antarctic island: responses to climate change |
title_full |
A 7000-year record of oribatid mite communities on a maritime-Antarctic island: responses to climate change |
title_fullStr |
A 7000-year record of oribatid mite communities on a maritime-Antarctic island: responses to climate change |
title_full_unstemmed |
A 7000-year record of oribatid mite communities on a maritime-Antarctic island: responses to climate change |
title_sort |
7000-year record of oribatid mite communities on a maritime-antarctic island: responses to climate change |
publisher |
Institute of Arctic and Alpine Research |
publishDate |
2005 |
url |
http://nora.nerc.ac.uk/id/eprint/1808/ |
long_lat |
ENVELOPE(-45.500,-45.500,-60.583,-60.583) ENVELOPE(-45.595,-45.595,-60.708,-60.708) |
geographic |
Antarctic South Orkney Islands Signy Island |
geographic_facet |
Antarctic South Orkney Islands Signy Island |
genre |
Alaskozetes antarcticus Antarc* Antarctic Antarctic and Alpine Research Antarctic Fur Seals antarcticus Arctic Arctocephalus gazella Ice Sheet Signy Island South Orkney Islands Mite |
genre_facet |
Alaskozetes antarcticus Antarc* Antarctic Antarctic and Alpine Research Antarctic Fur Seals antarcticus Arctic Arctocephalus gazella Ice Sheet Signy Island South Orkney Islands Mite |
op_relation |
Hodgson, Dominic A. orcid:0000-0002-3841-3746 Convey, Peter orcid:0000-0001-8497-9903 . 2005 A 7000-year record of oribatid mite communities on a maritime-Antarctic island: responses to climate change. Arctic, Antarctic and Alpine Research, 37 (2). 239-245. https://doi.org/10.1657/1523-0430(2005)037[0239:AYROOM]2.0.CO;2 <https://doi.org/10.1657/1523-0430(2005)037[0239:AYROOM]2.0.CO;2> |
op_doi |
https://doi.org/10.1657/1523-0430(2005)037[0239:AYROOM]2.0.CO;2 |
_version_ |
1766203984600629248 |